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Insight is eWater’s multiple-objective optimisation decision support framework. This framework allows for more efficient evaluation of planning options than the traditional manual trial and error approach that is often use. In other words, the main aim of Insight is to optimise decision rules for all scenarios. The optimisation tool enables a more thorough examination of potential planning scenarios and the resulting trade-offs between desired outcomes.

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Pre-requisites for installing Insight

  • Latest installed version of Source. This must be correctly installed prior to running Insight;
  • Microsoft .NET framework v4 (or higher); and
  • Microsoft C++ 2010 x86 redistributable package

The Insight interface

Figure 1 shows the user interface for Insight, allowing you to load projects and work with objectives and variables.

 

Running a project using the Insight user interface

Create a model and save it in Source.

 

Info

Note the following when creating a model in Source:

  • Each project must consist of one scenario only;
  • Use the Function manager to define global expressions in your Source model for both objectives and decision variables. When using the Function manager, note that decision variables need to be a scalar value and the objectives need to be set up so the last value of the global expression gives the objective value. Objectives also need to be setup as though the aims are to minimise the objective value. And depending upon the optimisation problem at hand, you may wish to consider simplifying the Source project in order to reduce optimisation run times or to better address the optimisation question;

Open Insight and click Browse (as shown in Figure 1) to choose the directory containing the project(s);

Click Load to load all the objective functions that were created in the loaded projects;